Social psychologists John R. P. French and Bertram Raven, in a now-classic study (1959), developed a schema of sources of power by which to analyse how power plays work (or fail to work) in a specific relationship.
According to French and Raven, power must be distinguished from influence in the following way: power is that state of affairs which holds in a given relationship, A-B, such that a given influence attempt by A over B makes A's desired change in B more likely. Conceived this way, power is fundamentally relative – it depends on the specific understandings A and B each apply to their relationship, and, interestingly, requires B's recognition of a quality in A which would motivate B to change in the way A intends. A must draw on the 'base' or combination of bases of power appropriate to the relationship, to effect the desired outcome. Drawing on the wrong power base can have unintended effects, including a reduction in A's own power.
Positional power
Also called "legitimate power", it is the power of an individual because of the relative position and duties of the holder of the position within an organization. Legitimate power is formal authority delegated to the holder of the position. It is usually accompanied by various attributes of power such as uniforms, offices etc. This is the most obvious and also the most important kind of power.
Referent power
Referent power is the power or ability of individuals to attract others and build loyalty. It's based on the charisma and interpersonal skills of the power holder. A person may be admired because of specific personal trait, and this admiration creates the opportunity for interpersonal influence. Here the person under power desires to identify with these personal qualities, and gains satisfaction from being an accepted follower. Nationalism and patriotism count towards an intangible sort of referent power. For example, soldiers fight in wars to defend the honor of the country. This